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Growth factors and sepsis

Myriam Stolz, Harald Zeisler, Florian Heinzl, Julia Binder, Alex Farr
OBJECTIVES: The ratio of soluble fms-like tyrosine kinase 1 (sFlt-1) to placental growth factor (PlGF) is increased in preeclampsia. This study evaluated perinatal outcomes in cases with an sFlt-1:PlGF ratio above 655. STUDY DESIGN: We retrospectively analyzed data from all consecutive women with singleton pregnancies who presented with clinically manifest preeclampsia and underwent immediate sFlt-1:PlGF assessment. Cases with an sFlt-1:PlGF ratio ≥ 655 were matched 1:1 for gestational age to controls with a ratio < 655...
January 2018: Pregnancy Hypertension
Christoph Stork, Beáta Kovács, Barnabás Rózsai, Johannes Putze, Matthias Kiel, Ágnes Dorn, Judit Kovács, Szilvia Melegh, Andreas Leimbach, Tamás Kovács, György Schneider, Monika Kerényi, Levente Emödy, Ulrich Dobrindt
Asymptomatic bacterial colonization of the urinary bladder (asymptomatic bacteriuria, ABU) can prevent bladder colonization by uropathogens and thus symptomatic urinary tract infection (UTI). Deliberate bladder colonization with Escherichia coli ABU isolate 83972 has been shown to outcompete uropathogens and prevent symptomatic UTI by bacterial interference. Many ABU isolates evolved from uropathogenic ancestors and, although attenuated, may still be able to express virulence-associated factors. Our aim was to screen for efficient and safe candidate strains that could be used as alternatives to E...
2018: Frontiers in Microbiology
M Katsiari, A Mavroidi, E D Platsouka, C Nikolaou
OBJECTIVES: The aim of the present study was to determine potential host-, pathogen-, infection- and treatment-related risk factors that might predict a fulminant, fatal course of bacteremia caused extensively drug-resistant A. baumannii (XDR Aba). METHODS: Eighty-seven patients with monomicrobial growth of XDR Aba in blood cultures within a 6-year period were studied. Patients were divided into three groups, according to ICU outcome. Group A (n=40) consisted of patients who survived, Group B (n=10) included patients with fulminant sepsis that died early (<48h), whereas Group C (n=37) included patients that died later (> 48h) after the onset of bacteremia...
February 19, 2018: Journal of Global Antimicrobial Resistance
Florry E van den Boogaard, Xanthe Brands, JanWillem Duitman, Sacha F de Stoppelaar, Keren S Borensztajn, Joris J T H Roelofs, Morley D Hollenberg, C Arnold Spek, Marcus J Schultz, Cornelis van 't Veer, Tom van der Poll
Streptococcus pneumoniae is the most common causative pathogen in community-acquired pneumonia. Protease-activated receptor 2 (PAR2) is expressed by different cell types in the lungs and can mediate inflammatory responses. We sought to determine the role of PAR2 during pneumococcal pneumonia. Pneumococcal pneumonia or sepsis was induced in wild-type and PAR2 knock-out (Par2-/-) mice by infection with viable S. pneumoniae. Par2-/- mice demonstrated improved host defense, a largely preserved lung barrier integrity, and reduced mortality during pneumococcal pneumonia...
February 5, 2018: Journal of Infectious Diseases
Luis Toro, Víctor Barrientos, Pablo León, Macarena Rojas, Magdalena Gonzalez, Alvaro González-Ibáñez, Sebastián Illanes, Keigo Sugikawa, Néstor Abarzúa, César Bascuñán, Katherine Arcos, Carlos Fuentealba, Ana María Tong, Alvaro A Elorza, María Eugenia Pinto, Rodrigo Alzamora, Carlos Romero, Luis Michea
It is accepted that osteoblasts/osteocytes are the major source for circulating fibroblast growth factor 23 (FGF23). However, erythropoietic cells of bone marrow also express FGF23. The modulation of FGF23 expression in bone marrow and potential contribution to circulating FGF23 has not been well studied. Moreover, recent studies show that plasma FGF23 may increase early during acute kidney injury (AKI). Erythropoietin, a kidney-derived hormone that targets erythropoietic cells, increases in AKI. Here we tested whether an acute increase of plasma erythropoietin induces FGF23 expression in erythropoietic cells of bone marrow thereby contributing to the increase of circulating FGF23 in AKI...
January 27, 2018: Kidney International
Mohammed Kamil Quraishi, Yih Chyn Phan, Wael Asaad, Naing Lynn
A staghorn calculus is a calculus accommodating the majority of a renal calyx extending into the renal pelvis. A conservative approach to its treatment may lead to high morbidity and mortality rates. Such morbidity usually manifests with renal failure, obstructed upper urinary tractand/or life-threatening sepsis. Prostatic abscesses have never been associated with staghorn calculi in the literature. We report a case of a 70-year-old man who presented with sepsis, which was found to originate from a complex prostatic abscess...
February 1, 2018: BMJ Case Reports
Yuan Hua Zheng, Yi Yu Deng, Wen Lai, Shao Yi Zheng, Hui Ning Bian, Zu An Liu, Zhi Feng Huang, Chuan Wei Sun, Han Hua Li, Hong Min Luo, Liang Hua Ma, Han Xi Chen, Bing Xiong
Inflammation is a defensive response in the living tissue of the vascular system that acts against damage factors and involves various types of immune cells, including macrophages, neutrophils, endothelial cells and other associated immune molecules. If the release of inflammatory mediators is excessive, systemic inflammatory response syndrome may develop. Sepsis is the most common complication of severe burns and is a systemic inflammatory response syndrome that is caused by infectious factors and is capable of leading to multiple organ dysfunction and potentially death...
January 18, 2018: Molecular Medicine Reports
Christopher Geven, Esther Peters, Mathias Schroedter, Joachim Struck, Andreas Bergmann, Oscar McCook, Peter Radermacher, Matthijs Kox, Peter Pickkers
PURPOSE: Adrenomedullin (ADM) is an important regulator of endothelial barrier function during sepsis. Administration of a murine antibody targeted against the N-terminus of ADM (HAM1101) resulted in improved outcome in models of murine sepsis. We studied the effects of a humanized form of this antibody (HAM8101, also known as Adrecizumab) on vascular barrier dysfunction and survival in rodent models of systemic inflammation and sepsis. METHODS: Rats (n=48) received different dosages of HAM8101 or placebo (n = 8 per group), directly followed by administration of lipopolysaccharide (5 mg/kg)...
January 10, 2018: Shock
Gaurav Patwardhan, Ankit Soni, Nitin Rachwani, Sandeep Kadam, Sanjay Patole, Anand Pandit
Background: Feeding intolerance prolongs time to full feeds (TFFs) in preterm infants. We studied factors associated with TFF in preterm infants on standardized feeding regimen (SFR) and routine probiotic supplementation (RPS). Methods: This is a prospective cohort study of preterm infants ≤1500 g. Pearson's correlation, Mann-Whitney test and multivariate analysis were used. Results: In total, 37 of 304 admitted infants died before reaching full feeds...
December 28, 2017: Journal of Tropical Pediatrics
Hao Wang, Ting Yang, Tao Wang, Nanya Hao, Yongchun Shen, Yanqiu Wu, Zhicheng Yuan, Lei Chen, Fuqiang Wen
BACKGROUNDS: Cigarette smoke (CS)-induced airway mucus hypersecretion and inflammation are the prominent features of chronic obstructive pulmonary disease (COPD). As an anti-inflammatory flavonoid, phloretin was found to be involved in various inflammatory disorders such as sepsis. In this study, the effects of phloretin on CS-induced airway mucin secretion and inflammation were investigated in vivo and in vitro. METHODS: Phloretin dissolved in 1% DMSO was daily injected intraperitoneally to mice, which were then exposed to CS for four weeks...
December 12, 2017: International Immunopharmacology
F Ahmed, A Y Raj, L N Begum
Late onset neonatal sepsis (LONS) is a common complication in the Neonatal Intensive Care Unit (NICU) especially in premature infants, in whom the clinical presentation can be subtle and nonspecific. Thrombocytopenia is an important complication of sepsis. The objective of the present study was to identify the organism-speci?c platelet response in neonate with culture proven LONS. In this retrospective study all the infants with blood culture positive LONS in the neonatal intensive care unit (NICU) at Square Hospitals Ltd...
October 2017: Mymensingh Medical Journal: MMJ
Lip Hen Moey, Nor Azimah Abdul Azize, Yusnita Yakob, Huey Yin Leong, Wee Teik Keng, Bee Chin Chen, Lock Hock Ngu
BACKGROUND: Fructose-1,6-bisphosphatase (FBPase) deficiency is a rare autosomal recessive inborn error of gluconeogenesis. We reported the clinical findings and molecular genetic data in seven Malaysian patients with FBPase deficiency. METHODS: All patients diagnosed with FBPase deficiency from 2010 to 2015 were included in this study. Their clinical and laboratory data were collected retrospectively. RESULTS: All the patients presented with recurrent episodes of hypoglycemia, metabolic acidosis, hyperlactacidemia and hepatomegaly...
November 13, 2017: Pediatrics and Neonatology
Jun Liu, Gui-Juan Zou, Long Yang, Shu Rong, Bai-Qiang Li, Zhi-Hui Tong, Wei-Qin Li, Jie-Shou Li
INTRODUCTION: Increased circulating endothelial progenitor cells (cEPC) have been observed in patients with vascular injury associated with sepsis and acute lung injury. However, a role for cEPC in severe acute pancreatitis (SAP) remains unclear. We therefore conducted a prospective study to study whether the quantities of cEPC can predict persistent organ failure (POF) in patients with predicted SAP. METHODS: A total of 42 predicted SAP patients who were admitted within 24 hours after symptom onset and 10 healthy control subjects were enrolled in our study...
December 1, 2017: Shock
Xavier Delabranche, Julie Helms, Ferhat Meziani
Host infection by a micro-organism triggers systemic inflammation, innate immunity and complement pathways, but also haemostasis activation. The role of thrombin and fibrin generation in host defence is now recognised, and thrombin has become a partner for survival, while it was seen only as one of the "principal suspects" of multiple organ failure and death during septic shock. This review is first focused on pathophysiology. The role of contact activation system, polyphosphates and neutrophil extracellular traps has emerged, offering new potential therapeutic targets...
December 2, 2017: Annals of Intensive Care
Philip Riley, Anne-Marie Glenny, Helen V Worthington, Anne Littlewood, Luisa M Fernandez Mauleffinch, Jan E Clarkson, Martin G McCabe
BACKGROUND: Oral mucositis is a side effect of chemotherapy, head and neck radiotherapy, and targeted therapy, affecting over 75% of high-risk patients. Ulceration can lead to severe pain and difficulty with eating and drinking, which may necessitate opioid analgesics, hospitalisation and supplemental nutrition. These complications may disrupt cancer therapy, which may reduce survival. There is also a risk of death from sepsis if pathogens enter the ulcers of immunocompromised patients...
November 28, 2017: Cochrane Database of Systematic Reviews
Lukas Buendgens, Eray Yagmur, Jan Bruensing, Ulf Herbers, Christer Baeck, Christian Trautwein, Alexander Koch, Frank Tacke
Growth differentiation factor-15 (GDF-15) is a member of the transforming growth factor- β superfamily related to inflammation and macrophage activation. Serum concentrations of GDF-15 can predict poor survival in chronic diseases, but its role in sepsis is obscure. Therefore, we investigated GDF-15 as a prognostic biomarker in critically ill patients. We measured GDF-15 levels in 219 critically ill patients (146 with sepsis, 73 without sepsis) upon admission to the intensive care unit (ICU), in comparison to 66 healthy controls...
2017: Disease Markers
Li-Chun Yeh, Ping-Wun Huang, Kuan-Hsian Hsieh, Chung-Hsuan Wang, Yi-Kai Kao, Tzu-Hsiang Lin, Xiao-Lun Lee
Acute lung injury (ALI) is one of the complications of severe sepsis, causing sudden deaths. However, information regarding predictive factors for the onset of ALI in severe sepsis is limited. Growth arrest-specific gene 6 (Gas6) is secreted by endothelial cells and is important for the activation of endothelium during inflammation. This study aimed to investigate the predictive effect of plasma Gas6 in patients with severe sepsis. Collection of plasma samples was carried out from 129 participants with severe sepsis following with or without ALI development...
November 2017: Tohoku Journal of Experimental Medicine
Ahsan Wahab, Kavitha Kesari, Siddique Chaudhary, Mahin Khan, Hafiz Khan, Susan Smith, Yanis Boumber
Lung cancer is one of the leading causes of cancer-related mortality and is categorized into small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). We present a patient with epidermal growth factor receptor (EGFR)-mutant-NSCLC who developed metastatic SCLC after initial therapy with second-generation EGFR-tyrosine kinase inhibitor, afatinib. A 65-year-old male non-smoker was diagnosed with adenocarcinoma of the right lung, stage IVA (M1a). Due to tumor positivity for EGFR-Exon 19 deletion, the patient was started on oral afatinib, which resulted in a partial response...
December 2, 2017: Cancer Biology & Therapy
Chao Ding, Cornelis Van't Veer, Joris J T H Roelofs, Meenal Shukla, Keith R McCrae, Alexey S Revenko, Jeff Crosby, Tom van der Poll
High molecular weight kininogen (HK), together with Factor XI, Factor XII and prekallikrein, is part of the contact system, which has proinflammatory, prothrombotic and vasoactive properties. We hypothesized that HK plays a role in the host response during pneumonia derived sepsis. To this end mice were depleted of kininogen (KNG) to plasma HK levels of 28% of normal by repeated treatment with a specific antisense oligonucleotide (KNG ASO) for three weeks prior to infection with the common human sepsis pathogen Klebsiella pneumoniae via the airways...
November 9, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
Uriel Trahtemberg, Dror Mevorach
Inefficient and abnormal clearance of apoptotic cells (efferocytosis) contributes to systemic autoimmune disease in humans and mice, and inefficient chromosomal DNA degradation by DNAse II leads to systemic polyarthritis and a cytokine storm. By contrast, efficient clearance allows immune homeostasis, generally leads to a non-inflammatory state for both macrophages and dendritic cells (DCs), and contributes to maintenance of peripheral tolerance. As many as 3 × 10(8) cells undergo apoptosis every hour in our bodies, and one of the primary "eat me" signals expressed by apoptotic cells is phosphatidylserine (PtdSer)...
2017: Frontiers in Immunology
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